apex-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Ananth (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (APEXMALHAR-2447) No indication from AbstractFileInputOperator when directory is empty
Date Sat, 11 Nov 2017 11:26:11 GMT

     [ https://issues.apache.org/jira/browse/APEXMALHAR-2447?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Ananth closed APEXMALHAR-2447.

> No indication from AbstractFileInputOperator when directory is empty
> --------------------------------------------------------------------
>                 Key: APEXMALHAR-2447
>                 URL: https://issues.apache.org/jira/browse/APEXMALHAR-2447
>             Project: Apache Apex Malhar
>          Issue Type: Improvement
>            Reporter: Velineni Lakshmi Prasanna
>            Assignee: Velineni Lakshmi Prasanna
>            Priority: Minor
>             Fix For: 3.8.0
> AbstractFileInputOperator scans a directory for files and outputs the file contents.
However, when the directory is empty nothing is sent. A downstream operator may want some
basic information that the input directory is scanned, so for example, it can create an output
folder. Add a notification to the operator when the directory is scanned for the first time.
An implementation, for example, can use this notification to send a control tuple with the
directory path notifying the downstream that the directory has been visited.

This message was sent by Atlassian JIRA

View raw message